What are these called?

[stracing]

i'm about to have 3 boxes but i don't need 3 monitors, keyboards and mouses. what is that thing called that allows me to switch between boxes?

i know what they're for and i know how to use them but i can't remember what they are called if my life depended on it right now.[/quote]

[stracing]

thank you!

[No.1]

Look at Tom's hardware guide .... THG ... he got a review of a few switches like this :)